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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/02/24 18:04:18 UTC

[jira] [Commented] (FLINK-3499) Possible ghost references in ZooKeeper completed checkpoint store

    [ https://issues.apache.org/jira/browse/FLINK-3499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15163328#comment-15163328 ] 

ASF GitHub Bot commented on FLINK-3499:
---------------------------------------

GitHub user uce opened a pull request:

    https://github.com/apache/flink/pull/1707

    [FLINK-3499] [runtime] Clear ZooKeeper references on recovery

    Adds a missing clear call to the ZooKeeperCompletedCheckpointStore. Before, it could have happened that on multiple calls to recovery after adding checkpoints, you would have references to the old checkpoints which were removed from ZK already.
    
    Waiting on Travis and then merging this.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/uce/flink 3499-ghosts

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/1707.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1707
    
----
commit 2ebf9bd6138df05eb08ec63cb64b3a90affa5bd0
Author: Ufuk Celebi <uc...@apache.org>
Date:   2016-02-24T16:34:05Z

    [FLINK-3499] [runtime] Clear ZooKeeper references on recovery

----


> Possible ghost references in ZooKeeper completed checkpoint store
> -----------------------------------------------------------------
>
>                 Key: FLINK-3499
>                 URL: https://issues.apache.org/jira/browse/FLINK-3499
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Ufuk Celebi
>            Assignee: Ufuk Celebi
>
> The ZooKeeper completed checkpoint store can have references to recovered entries, which have been removed already. A simple fix is to clear these references on recovery.



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